20 famous people were born within 35 miles of Cape St. Claire
Closest of all is Barbara Kingsolver, from Annapolis, 6 mi away. Arnold’s list, next door, has 3 names, Carolyn Colvin first among them. So far, no famous person on record was born in Cape St. Claire. The best known of them is Toni Braxton, with articles in 55 languages.
From Wikidata and Wikipedia: people whose birthplace is Cape St. Claire and whose English Wikipedia article agrees, ranked by how many Wikipedia languages cover each person. Nearby people are those born in a town within 35 miles; distances are town center to town center. People known mainly for crimes, and adult performers, aren’t listed. “The usual town” = everyone born in the towns gathered so far.